﻿// Copyright (c) 2009, James Killick
// http://code.google.com/p/kosher/
// All rights reserved.

// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are met:

//     * Redistributions of source code must retain the above copyright notice, 
//       this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright notice,
//       this list of conditions and the following disclaimer in the documentation
//       and/or other materials provided with the distribution.
//     * Neither the name of the Kosher team nor the names of its contributors may 
//       be used to endorse or promote products derived from this software without 
//       specific prior written permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

using System;
using System.Text.RegularExpressions;

namespace Kosher.TestHarness.Domain.Validation
{
    public class UserValidatorWithStringErrors : ValidatorWithStringErrors<User>
    {
        public UserValidatorWithStringErrors()
        {
            //var complexIdentifierValidator = new ComplexIdentifierValidator();
            AssertFor(u => u.Id, "userid")
                .IsTrue(id => id.HasValue).Otherwise("User Id must be set");

            AssertFor(u => u.Forename, "forename")
                .IsTrue(f => !string.IsNullOrEmpty(f)).Otherwise("Forename must be set")
                .IsTrue(f => f.Length <= 100).Otherwise("Forename cannot be greater than 100 characters long");

            AssertFor(u => u.Surname, "surname")
                .IsTrue(s => !string.IsNullOrEmpty(s)).Otherwise("Surname must be set")
                .IsTrue(s => s.Length <= 100).Otherwise("Surname cannot be greater than 100 characters long");

            AssertFor(u => u.DateOfBirth, "dob")
                .IsTrue(dob => dob.HasValue).Otherwise("Date of birth must be set")
// ReSharper disable PossibleInvalidOperationException
                .IsTrue(dob => dob.Value.Year > 1890)
                .IsTrue(dob => dob.Value < DateTime.Now).Otherwise("Be realistic about your date of birth");
// ReSharper restore PossibleInvalidOperationException

            // Optional field, but when set must match the pattern
            AssertFor(u => u.EmailAddress, "email")
                .IsTrue(email => 
                {
                    if (!string.IsNullOrEmpty(email))
                    {
                        return Regex.IsMatch(email, @"^(?:[a-zA-Z0-9_'^&/+-])+(?:\.(?:[a-zA-Z0-9_'^&/+-])+)*@(?:(?:\[?(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))\.){3}(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\]?)|(?:[a-zA-Z0-9-]+\.)+(?:[a-zA-Z]){2,}\.?)$");
                    }
                    return true;
                }).Otherwise("Not a valid email address");

            // Complex object that has its own validator
            var postalAddressValidator = new PostalAddressValidatorWithStringErrors();
            AssertFor(u => u.PostalAddress, "postal_address")
                .IsTrue(addr => addr != null).Otherwise("Postal address not specified")
                .IsTrue(addr => postalAddressValidator.IsValid(addr)).Otherwise(() => postalAddressValidator.Errors);
        }
    }
}
